Bts Transceiver Module (Btrm) - Huawei Airbridge cBTS3612 Maintenance Manual

On-site Maintenance Manual
Airbridge cBTS3612 CDMA Base Station
The influence on the service
I.
If a certain BHPA does not work properly, we need to switch it
off from the BTS switch box before replacing it (note that a switch
serves a group of BHPA, BTRM and BRFM)
The influence on the relevant components
II.
Before detaching the BHPA, first detach the BRFM to which it
corresponds -- see "4.2.8
about BRFM detachment. When the BHPA is installed, put the
corresponding BRFM back.
Installing BHPA
III.
When installing the BHPA, make sure the module panel is in a
seamless contact with the front edge of the subrack and then tighten
the screws, or the RF transmission may not be able to meet the
index.

4.2.10 BTS Transceiver Module (BTRM)

While basically observing the "4.1.1
should also pay attention to the following:
The influence on the service
I.
If a certain BTRM does not work properly, we need to switch it
off from the BTS switch box before replacing it (note that a switch
serves a group of BHPA, BTRM and BRFM).
BTS RF Fan Module (BRFM)" for details
4-14
Chapter 4 Component
Replacement
Board Replacement", we